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AVprozaik [17]
3 years ago
13

Please help it is for a test. The question is in the photo.

Mathematics
1 answer:
Anettt [7]3 years ago
6 0

Answer:

umm?

Step-by-step explanation:

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Steve got his car fixed for $557. After taxes it cost him $594. What was the tax rate to the nearest %?
I am Lyosha [343]
You're nearly there. Just some more steps.
557 * x = 594 tells us 
x = 594 / 557 (divide both sides by 557)
x ≈ 1.066427

When we've found this number we must realise the following:
the '1' in this answer is the 100% the car fixing costs (without taxes)
the '0.66427' stands for the tax rate.

To find the tax rate we multiply 0.66427 by 100, which gives us:
0.66427 * 100 = 6.6427 ≈ 7

So, rounded to the nearest %, the tax rate is 7%
6 0
2 years ago
can someone help me understand this, please? For some reason my answer is correct but I need to understand how did I found the c
Morgarella [4.7K]

Answer with step-by-step explanation:

The way the question is worded, this actually shouldn't be correct. The correct answer should be 3:4.

Because the trapezoids are similar, we can find the ratio of their perimeters by actually just finding the ratio of their sides.

Why?

By definition, the corresponding sides of a polygon are in a constant proportion. The perimeter is simply the sum of all sides of the polygon. Since we're just adding the sides, the proportion will still be maintained.

Therefore, we'll just need to ratio of their corresponding sides. The only two corresponding sides that are marked are \overline{RS} and \overline{AB}.

The ratio of \overline{RS}:\overline{AB} is 18:24\implies \boxed{3:4}.

The reason why it ideally should be 3:4 and not 4:3 is because the question states RTSU\sim ABCD, which mentions RSTU first, so our answer should follow this respective order. I believe you were marked right anyways because the specific order is not specified, but generally, you want to give your answer respectively by default.

3 0
2 years ago
How do you solve negative exponents?
JulsSmile [24]
Negative Exponent Rule:
this says that negative exponents in the numerator get moved to the denominator and become positive exponents. Negative exponents in the denominator get moved to the numerator and become positive exponents.
Like this||

4 0
2 years ago
Read 2 more answers
How do you graph the equation y+1=2/3(x+5)
forsale [732]
Graph the point (5,1) and use the slope 2/3 to go up 2 and 3 to the right.

If you're confused on anything else, feel free to message me. :)
3 0
3 years ago
Y=m(3+2n) when m=4 and n=6
kobusy [5.1K]
Substitute 4 for m and 6 for n

Y= 4(3+2(6))
Y= 4(3+12)
Y=4(15)
Y=60
4 0
3 years ago
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